The U.S. Navy has allowed more than a dozen ships through to Iranian ports, lifting a blockade as part of an agreement to end the war, Vice President JD Vance said Thursday.

Vance also said he plans to go to Switzerland for talks with Iran this weekend, but that the plan could change.

The updates came at a White House press briefing, where Vance said more oil is now flowing through the Strait of Hormuz. The Republican vice president said more than 12.5 million barrels went through the shipping channel Wednesday night.

"So we're also honoring our end of the early part of the agreement on the military side," he said, citing it as an immediate benefit of the deal as he downplayed criticism that the agreement tilts in favor of Iran.

And in an extraordinary rebuke, he warned U.S. critics in Israel against "attacking the only powerful ally" it has left. He lashed out at members of the Israeli government, warning them that "Donald J. Trump is the only head of state in the entire world who is sympathetic to the nation of Israel at this moment in time."